Cardiovascular DiseaseChapter 9

Section I: The Heart and Its Functions

Heart: Function and Structure

Heart Animation

Alternative link

“lub-DUB”

Lub: a valve opens and permits flow from between atrium and ventricle

DUB: the forcing out of blood from the heart (from right ventricle to pulmonary arteries to oxygenate blood while left (aortic valve)ventricle pump oxygenated blood to aorta)

Lub=diastolic blood pressure (resting or relaxed heart state)

DUB=systole (systolic blood pressure)

Blood pressure measures our hearts resting and working states

“Troubled Hearts”

Four CV Diseases Linked with Health Behaviors

1. Coronary Heart Disease

2. Cardiac Arrest

3. Stroke

4. Hypertension

Related health behaviors include… 1)exercise, 2) stress management, and 3) eating habits.

Sound familiar?

Also smoking, alcohol abuse, high cholesterol diets. “Risks” are interesting to consider.

Individual Determinants

• Eating/Nutrition• Gender• Aging• Race/Ethnicity

Community/Environment

• Immediate Family Members• Community members (nearby)

Health Systems/Access to Care

• Long-term and continued use of health care predicts better health outcomes (despite other determinants) (Banks et al, 2006)

CV Disease Descriptions

Disease1. Coronary Heart Disease

2. Cardiac Arrest

3. Stroke

4. Hypertension

Description1. Leading cause of heart attacks:

caused by atherosclerosis (modifiable risks)

2. Not a heart attack: not always fatal and time is key

3. Interrupted blood flow to the brain OR rupture of blood vessel in brain

4. High blood pressure: Heart is working too hard for its own good

Psychosocial Factors of CV Disease

Stress

Ethnicity

Perceived Racism

Example: House, M.D., episode #203

Based on what we’ve learned about race thus far– what are your thoughts on heart medications designed for racial groups?

Grocery List Task